dcterms modified | ![]() ![]() |
||||||
---|---|---|---|---|---|---|---|
broader |
|
||||||
definition | In a star cluster, coming across of two stars so closely that their orbits alter by their mutual gravitational attractions. As regards an asteroid or comet, a situation when it crosses the Moon's orbit and approaches the Earth with a risk of collision. | ||||||
narrower |
|
||||||
related |
|
||||||
type |
|
||||||
contributor | AAS_Frey.Katie original |